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Phys Rev B Condens Matter
; 38(11): 7877-7880, 1988 Oct 15.
Article
in English
| MEDLINE
| ID: mdl-9945533
2.
Phys Rev B Condens Matter
; 33(10): 7144-7153, 1986 May 15.
Article
in English
| MEDLINE
| ID: mdl-9938044